CN201306305Y - Cartridge mechanical seal for slurry pump - Google Patents
Cartridge mechanical seal for slurry pump Download PDFInfo
- Publication number
- CN201306305Y CN201306305Y CNU200820167796XU CN200820167796U CN201306305Y CN 201306305 Y CN201306305 Y CN 201306305Y CN U200820167796X U CNU200820167796X U CN U200820167796XU CN 200820167796 U CN200820167796 U CN 200820167796U CN 201306305 Y CN201306305 Y CN 201306305Y
- Authority
- CN
- China
- Prior art keywords
- ring
- stationary ring
- axle sleeve
- stationary
- shaft sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002002 slurry Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005360 mashing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000009837 dry grinding Methods 0.000 abstract description 2
- 230000020169 heat generation Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
Landscapes
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a cartridge mechanical seal for a slurry pump, which comprises a stationary ring (11) connected with an inner ring (18), a rotating ring (16) and a pump shaft sleeve (21) which are connected with a shaft sleeve (15), a connecting flange (19) which is provided with a water inlet (23) and a water outlet (5) and is positioned on the shaft sleeve (15) through a locating plate (4), and a spring (17) propped between the stationary ring (11) and the inner ring (18), wherein, the water inlet (23) and the water outlet (5) are communicated with a circular inner chamber (24) formed by the inner ring (18), the shaft sleeve (15) and the stationary ring (11), and a skeleton oil seal (20) is arranged between the connecting flange (19) and the shaft sleeve (15). The utility model can reduce heat generation caused by the dry grinding of the rotating ring and the stationary ring during operation by cooling the stationary ring, thereby effectively preventing seal components from long-term exposure in high temperatures, which results in the reduction in the service life of the mechanical seal, and meanwhile facilitating the disassembly and assembly, maintenance and cleaning of the cartridge mechanical seal.
Description
Technical field
The utility model relates to a kind of mechanical seal.It specifically is a kind of integrated mechanical sealing that is used on the mashing pump.
Background technique
At present, at the mashing pump that is used for the conveyance fluid medium, the fluid of carrying in order to prevent pollutes environment to external leakage along the slit between high-speed rotating shaft and the pump case, and we generally are provided with seal arrangement.In the prior art, generally all adopt end surface mechanical sealing, be about to running shaft and the gap sealing that connected between the housing is converted into the rotating ring of pump self and the end face seal between the stationary ring.This sealing configuration has that good seal performance, leakage rate are few, advantage such as compensation automatically in the working procedure.But, in the entire work process of mechanical seal, because rotating ring is in the high speed rotating working state all the time; Especially in mashing pump, when flowing medium does not also arrive the end face seal position, the dry friction and produce bigger heating value each other of dynamic and static ring, if mechanical seal is worked in hot environment for a long time, high temperature ageing all can take place in Sealing and other parts such as O-ring seals etc., thereby not only influence the sealing effect of mechanical seal, and can shorten its working life.The patent No. is 200620140397.5 model utilitys that are called the desulfur pump integrated mechanical sealing spare of being with recirculated cooling water, though this model utility can be cooled off mechanical sealing element by cooling water, but because its entery and delivery port all is opened on the spring seat, therefore water intake and water outlet and inside are being carried out in the cleaning process, spring seat, spring, gland etc. all need be dismantled, thereby cleaning has been brought many inconvenience.
The model utility content
The technical problems to be solved in the utility model provides a kind of can the cooling stationary ring, thereby the heat that reduces dynamic and static ring to dry grind in the course of the work and produce, effectively avoided sealing component hot soak condition and when shortening the working life of mechanical seal, make the cleaning of water intake and water outlet more convenient be used for integrated mechanical sealing on the mashing pump.
For solving the problems of the technologies described above, the utility model provides a kind of integrated mechanical sealing on the mashing pump of being used for following structure: it comprises stationary ring, adpting flange, interior ring, spring, pump shaft cover and the rotating ring that is connected with axle sleeve, described axle sleeve is connected with the pump shaft cover, spring withstands between stationary ring and the interior ring, stationary ring is connected with interior ring, adpting flange is provided with water intake and water outlet, and water intake and water outlet communicate with the ring-type inner chamber of being made up of interior ring, axle sleeve and static friction; Adpting flange is positioned on the axle sleeve by location piece; Be provided with outside framework oil seal between adpting flange and the axle sleeve.
After adopting above structure, the utlity model has following advantage: because the ring-type inner chamber that stationary ring, axle sleeve and interior ring form is connected with water intake and water outlet on the adpting flange, therefore, outside cooling water can be entered into the ring-type inner chamber by the water intake on the adpting flange, and form a kind of recirculated cooling water device by the outflow of the water outlet on the adpting flange, thereby reduce rotating ring and stationary ring in the course of the work because of the heat that dry grinding produces takes place, effectively avoid mechanical seal component hot soak condition and shorten working life of mechanical seal; In addition, be located on the spring seat water intake and water outlet different with prior art, water intake in the utility model and water outlet are to be provided with on the adpting flange, and adpting flange need not to be used for fixing spring and stop stationary ring to rotate, therefore, the utility model makes the cleaning of water intake and water outlet become more convenient.
As a kind of improvement of the present utility model, be provided with throw-out collar between described stationary ring and the interior ring; Described throw-out collar is connected with stationary ring by the transmission pin; One end of described transmission pin is positioned at the pin-and-hole of ring; Described spring withstands between throw-out collar and the interior ring.This improvement of the present utility model can avoid stationary ring directly to contact with spring, prevent that effectively spring in dynamic and static ring working procedure (or in starting or stopped process) from having matching gap and the swing situation occurs owing to connecting pin and stationary ring, thereby further improve sealing effect of the present utility model.
As another kind of improvement the of the present utility model, be provided with radial clearance between rotating ring and the axle sleeve outer wall, described radial clearance and ring-type intracavity inter-connection.After adopting this structure, the utility model can be when making the stationary ring cooling, can also make rotating ring also can be subjected to the cooling of extraneous cooling water, thereby the heat that further reduces dynamic and static ring to dry grind in the course of the work and produce is avoided sealing the component hot soak condition and working life of shortening mechanical seal more effectively.
Description of drawings
Fig. 1 is the general assembly drawing that the utility model is used for the integrated mechanical sealing on the mashing pump.
Fig. 2 is the main TV structure schematic representation of adpting flange in the utility model.
Fig. 3 is the sectional structure schematic representation along " A-A " line among Fig. 2.
As shown in FIG.: 1, retaining ring, 2, Cock screw, 3, screw, 4, location piece, 5, water outlet, 6, O shape circle, 7, O shape circle, 8, the transmission pin, 9, throw-out collar, 10, O type circle, 11, stationary ring, 12, O shape circle, 13, O shape circle, 14, pin, 15, axle sleeve, 16, rotating ring, 17, spring, 18, interior ring, 19, adpting flange, 20, outside framework oil seal, 21, the pump shaft cover, 22, O shape circle, 23, water intake, 24, the ring-type inner chamber, 25, pin-and-hole, 26, radial clearance.
Specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 1, Fig. 2 and shown in Figure 3, in this specific embodiment, the integrated mechanical sealing that the utility model is used on the mashing pump comprises rotating ring 16, stationary ring 11, axle sleeve 15, throw-out collar 9, interior ring 18, spring 17, transmission pin 8, pump shaft cover 21, adpting flange 19, location piece 4 and retaining ring 1; Described axle sleeve 15 is fastened on the pump shaft cover 21 by retaining ring 1 and Cock screw 2; Described pump shaft overlaps 21 inwalls and is provided with annular groove, is provided with O shape circle 22 in the described annular groove; Be provided with O shape circle 12 between described axle sleeve 15 and the pump shaft cover 21; Be connected with pin 14 on the described axle sleeve 15; One end of described pin 14 is positioned at the pin-and-hole of being located on the rotating ring 16; 14 pairs of rotating rings 16 of described pin play gearing; Be provided with O shape circle 13 between described rotating ring 16 and the axle sleeve 15; Be provided with radial clearance 26 between described rotating ring 16 and the axle sleeve 15; Described throw-out collar 9 is connected with stationary ring 11 by transmission pin 8; One end of described transmission pin 8 is positioned at the pin-and-hole of being located on the ring 18 25; Described spring 17 withstands between throw-out collar 9 and the interior ring 18; Form an annular cavity 24 in described between ring 18, throw-out collar 9 and stationary ring 11 and axle sleeve 15 outer walls; Described radial clearance 26 is connected with annular cavity 24; Be embedded with location piece 4 on the outer wall of described axle sleeve 15; Described adpting flange 19 is connected on the location piece 4 by screw 3; Be provided with outside framework oil seal 20 between described adpting flange 19 inwalls and the axle sleeve 15; Described adpting flange 19 is provided with water intake 23 and water outlet 5; Described water intake 23 and water outlet 5 are connected with annular cavity 24; Be provided with O shape circle 6 and 7 between described adpting flange 19 and the interior ring 18; Be provided with O shape circle 10 in described between ring 18 and the stationary ring 11.
Claims (3)
1, a kind of integrated mechanical sealing that is used on the mashing pump comprises stationary ring (11), the rotating ring (16) that is connected with axle sleeve (15), interior ring (18), spring (17) and pump shaft cover (21); Described axle sleeve (15) is connected with pump shaft cover (21); Described spring (17) withstands between stationary ring (11) and the interior ring (18); Described stationary ring (11) is connected with interior ring (18), it is characterized in that: it also comprises an adpting flange (19); Described adpting flange (19) is provided with water intake (23) and water outlet (5); Described water intake (23) and water outlet (5) communicate with the ring-type inner chamber of being made up of interior ring (18), axle sleeve (15) and stationary ring (11) (24); Described adpting flange (19) is positioned on the axle sleeve (15) by location piece (4); Be provided with outside framework oil seal (20) between described adpting flange (19) and the axle sleeve (15).
2, the integrated mechanical sealing that is used on the mashing pump according to claim 1 is characterized in that: be provided with throw-out collar (9) between described stationary ring (11) and the interior ring (18); Described throw-out collar (9) is connected with stationary ring (11) by transmission pin (8); One end of described transmission pin (8) is positioned at the pin-and-hole (25) of ring (18); Described spring (17) withstands between throw-out collar (9) and the interior ring (18).
3, the integrated mechanical sealing that is used on the mashing pump according to claim 1 is characterized in that: be provided with radial clearance (26) between described rotating ring (16) and axle sleeve (15) outer wall; Described radial clearance (26) is connected with ring-type inner chamber (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820167796XU CN201306305Y (en) | 2008-11-13 | 2008-11-13 | Cartridge mechanical seal for slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820167796XU CN201306305Y (en) | 2008-11-13 | 2008-11-13 | Cartridge mechanical seal for slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306305Y true CN201306305Y (en) | 2009-09-09 |
Family
ID=41098771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820167796XU Expired - Fee Related CN201306305Y (en) | 2008-11-13 | 2008-11-13 | Cartridge mechanical seal for slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306305Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201899A (en) * | 2015-10-23 | 2015-12-30 | 宁波方力密封件有限公司 | Mechanical seal for boiler feed pump |
| CN105422502A (en) * | 2015-12-18 | 2016-03-23 | 李良荣 | Intelligent sanitary pump |
| CN106762621A (en) * | 2017-01-09 | 2017-05-31 | 江苏鸿胜泵业科技有限公司 | A kind of self-lubricating mechanical sealing |
| CN109667935A (en) * | 2018-12-07 | 2019-04-23 | 宁波方力密封件有限公司 | A kind of mechanical seal of packaging type |
-
2008
- 2008-11-13 CN CNU200820167796XU patent/CN201306305Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201899A (en) * | 2015-10-23 | 2015-12-30 | 宁波方力密封件有限公司 | Mechanical seal for boiler feed pump |
| CN105201899B (en) * | 2015-10-23 | 2018-05-15 | 宁波方力密封件有限公司 | Mechanical seal for boiler feed pump |
| CN105422502A (en) * | 2015-12-18 | 2016-03-23 | 李良荣 | Intelligent sanitary pump |
| CN106762621A (en) * | 2017-01-09 | 2017-05-31 | 江苏鸿胜泵业科技有限公司 | A kind of self-lubricating mechanical sealing |
| CN109667935A (en) * | 2018-12-07 | 2019-04-23 | 宁波方力密封件有限公司 | A kind of mechanical seal of packaging type |
| CN109667935B (en) * | 2018-12-07 | 2023-09-08 | 宁波方力密封件有限公司 | Packaging type mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |